* apply OptPass1FOP to FCVT.*.*

compiler/riscv/aoptcpurv.pas

@@ -717,6 +717,7 @@ implementation
               A_FSQRT_S,
               A_FNEG_S,
               A_FLW,
+              A_FCVT_D_S,
               A_FMADD_S,A_FMSUB_S,A_FNMSUB_S,A_FNMADD_S:
                 result:=OptPass1FOP(p,A_FSGNJ_S);
               A_FADD_D,
@@ -726,6 +727,7 @@ implementation
               A_FSQRT_D,
               A_FNEG_D,
               A_FLD,
+              A_FCVT_S_D,
               A_FMADD_D,A_FMSUB_D,A_FNMSUB_D,A_FNMADD_D:
                 result:=OptPass1FOP(p,A_FSGNJ_D);
               else